APA
McEwen M., Wills E. M., . (2011). Theoretical basis for nursing. Philadelphia: Wolters Kluwer/Lippincott Williams & Wilkins.
Chicago
McEwen Melanie, Wills Evelyn M, . 2011. Theoretical basis for nursing. Philadelphia: Wolters Kluwer/Lippincott Williams & Wilkins.
Harvard
McEwen M., Wills E. M., . (2011). Theoretical basis for nursing. Philadelphia: Wolters Kluwer/Lippincott Williams & Wilkins.
MLA
McEwen Melanie, Wills Evelyn M, . Theoretical basis for nursing. Philadelphia: Wolters Kluwer/Lippincott Williams & Wilkins. 2011.